A man's profundity may keep him from opening on a first interview, and his caution on a second; but I should suspect his emptiness, if he carried on his reserve to a third.
Charles Caleb ColtonA man who knows the world will not only make the most of everything he does know, but of many things he does not know, and will gain more credit by his adroit mode of hiding his ignorance than the pedant by his awkward attempt to exhibit his erudition.
Charles Caleb Colton